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Your cart is empty.The black water tank in your RV is a key piece of equipment, even if you don’t want to think about what it’s holding. It is one of those items that most people ignore until something happens, such as a sewage leak or rupture that can ruin your camping trip in a hurry. If you still have the original black water tank that shipped with your RV, it may be time to make a change to give you peace of mind going forward. The RecPro Alpha 13 Gallon Black Water Tank delivers an excellent level of build quality, ensuring it won’t break down when you’re driving your recreational vehicle over rough roads in off-the-beaten-path locations. This is one of the best aftermarket tanks you can purchase, as it is built to exacting tolerances with its dimensions of 24” x 39” x 4”. The precise manufacturing process means this tank will fit properly into the RV, replacing the original tank and creating a seamless 13-gallon holding tank. All of our black water tanks undergo significant testing before sale. This ensures that the design will stand up to fluctuating temperatures throughout the year. Because the black water tank may collect both liquids and solids, it needs to have a high quality construction that will not corrode or break down when placed under stress. Details: Length: 39” Width: 24” Depth: 4” Capacity: 13 gallons Material: Polyethylene Made in America Optional Fittings Kit Includes: Three 1 1/2" grommets (requires 2 1/2" hole size) One 3" Grommet (requires 4" hole size) Three 1 1/2" ABS barbed coupler One 3" ABS barbed coupler Six Mini-Probe Tank Inserts (sensors)
T. Winegard
August 16, 2025
My little Rockwood Geo Pro G15TB travel trailer came with a 12 gallon gray water tank and I needed more! Space is very limited under the camper so finding a holding tank was a challenge. I finally stumbled across this one and bought it. It fit perfectly right above the axle. I plumbed it into the existing drain and now I have a total of 15 gallons of gray water capacity. The quality is good, the shape is ideal, and installation was very easy. I went on a 5,200 mile road trip and used this tank often. It held up superbly.
ForesTiger Wallaby
June 18, 2025
A bit warped and drain pipe is reeeeallly small. But other than that I seems to be good qaulity it's thick and durable. Smaller than I expected but that's on me for not measuring. It's 3in tall at the highest spot. But is a good purchase I will purchase more when I start redoing mini buses.
Emily Dewenter
May 17, 2025
I am not one to write reviews, but couldn't resist posting a top notch rating for this tank. Quickly shipped by a company that has plenty of information / videos online and even encourages you to call them right up with any questions. I searched for days for the right sized tank and this was spot on to measurements. Build seems to be nice and sturdy quality and is USA made. In the process of my install, but have high confidence in this tank. Overall very happy. Thanks!
Alan Simmons
April 2, 2025
This product was the exact dimensions as described in the ad and fitment was exactly as anticipated..
Customer
November 30, 2024
perfect size, I use this size tank to up date a old slip in camper. Gray water tank, custom install rear of truck lower bumper. would buy again.
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